JP2007265678A - Circuit breaker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a circuit breaker enabling to change an operation method from a handle type to a push-button type with almost no change in an opening/closing mechanism part. <P>SOLUTION: The circuit breaker comprises the opening/closing mechanism or the like including an equipment body 1, a movable contact 31, a fixed contact 32, a turning member 5, link 6, a latch member 7, a cross bar 8, and an operation plate 10 or the like. When two regions formed by slopes to a mounting surface 4 of the circuit breaker including a rotation center 501 of the turning member 5 are a first region and a second region, a first operation member 21 and a second operation member 22 are turnably connected to the turning member 5 respectively in a first region and a second region. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a circuit breaker, and in particular, it can be easily changed from a handle-type on / off operation member to a push-button type, while sharing the opening / closing mechanism of the circuit breaker. The present invention relates to a circuit breaker that can be changed to an on / off operation member.

In a state where the circuit breaker is attached to a predetermined surface, an operation method for turning on and off the circuit breaker is usually a handle type that protrudes outside the body of the circuit breaker, that is, a handle operation part. A general method is to perform an operation such that the finger is turned up or down with a finger or the like. For example, Patent Document 1 to Patent Document 3 disclose a safety breaker (JIS C 8370, which is mainly defined in the vicinity of a service entrance of a house, a circuit breaker used as a circuit breaker for a branch circuit, etc. In any case, the circuit breaker is turned on and off by operating the handle operation part in the direction connecting the power supply side terminal and the load side terminal. A method of performing the operation is employed.

In addition, a safety breaker type earth leakage breaker (in JIS C 8371, a leakage breaker for branching of residential distribution boards, which is defined as an earth leakage breaker mainly used in the vicinity of service entrances, etc., for branch circuits) In circuit breakers and agreement type circuit breakers for electric distribution boards, which are often used as circuit breakers for branch circuits of electric distribution boards, which also have agreement dimensions as defined in JIS, As in the case of the safety breaker, there has been a general method in which the handle operating portion protruding outside the body of the circuit breaker is operated to be rotated by being pushed up or down with a finger or the like.

In addition to the circuit breaker having the handle type (handle operation type) operation member as described above, there are various circuit breakers having a push button operation type operation member depending on the application. It is disclosed. For example, Patent Literature 4 discloses a push button operated switch with circuit breaker, and Patent Literature 5 discloses a push button operated type circuit breaker with an overcurrent protection function.

Japanese Patent Publication No. 1-445338 Fig. 2 Japanese Patent Laid-Open No. 6-236729 FIG. JP-A-9-63450 FIG. Japanese Utility Model Publication No. 7-27034 Fig. 1 Japanese Patent Laid-Open No. 10-283904 FIG.

As described above, the circuit breaker is configured to be a handle-type operation method as disclosed in Patent Documents 1 to 3 according to the use application, or the Patent Documents 4 to Although there are cases where it is configured to be a push button type operation method as disclosed in Document 5, while each of the operation methods is different in this manner, In the structure of the opening / closing mechanism interlocked according to the on / off operation of the circuit breaker, it is necessary to provide a dedicated opening / closing mechanism as a configuration corresponding to the operation method.

That is, in order to provide a circuit breaker having a different operation method, a manufacturer of the circuit breaker needs to design a plurality of switching mechanisms according to the operation method of the circuit breaker, leading to an increase in development cost. As a result, there are problems such as an increase in the number of parts at the time of mass production, an increase in the types of assembly process work, and an increase in the types of production lines, resulting in increased costs due to the increase in the number of products.

Therefore, the present invention has been made in view of such problems,
Even when it is necessary to change the operation method of the circuit breaker according to the use application of the circuit breaker, the operation method of the circuit breaker is hardly changed with little change of the switching mechanism part of the circuit breaker. It aims at providing the circuit breaker which can change.

In order to achieve the above object, according to the first aspect of the present invention, an operation member partially protruding outside the body constituting the circuit breaker, and operating in conjunction with the operation member by operating the operation member In a circuit breaker having an opening / closing mechanism for forcibly contacting and separating the fixed contact and the movable contact, and a mounting surface for mounting the circuit breaker on a predetermined surface, the circuit breaker is operated by operating the operating member. A rotating member disposed in the container so as to be rotatable between an on state and an off state, and connected to the rotating member by a link, and interlocked with a rotating operation of the rotating member via the link. And a latch member that operates, a cross bar interlocked with the latch member, a movable contact supported by the cross bar, and a fixed contact disposed to face the movable contact, The operating member is the rotating member The circuit breaker mounting surface including a first operation member and a second operation member that are rotatably coupled to the circuit breaker, and including a rotation center of the rotation member When the two areas formed by the slope with respect to the first area and the second area are the first area, the first operating member is connected to the rotating member in the first area, The operating member is connected to the rotating member in the second region to provide a circuit breaker.

According to such a configuration, the operation member in the circuit breaker in which the handle type operation member is rotatably provided is connected to the rotation member having the same rotation center as the operation member, and the rotation member. On the other hand, since the circuit breaker which is different from the push button type operation method can be provided by replacing it with the first operation member and the second operation member which are pivotally connected to each other, the change of the opening / closing mechanism is almost performed. Therefore, it is possible to provide a circuit breaker capable of changing the operation method at low cost.

The rotating member is rotated in a predetermined direction by pressing the first operating member, and the second operating member is thereby operated in a direction opposite to the pressing direction. The second operating member operates so as to protrude to the outside of the container body, and by pressing the second operating member, the rotating member is rotated in a direction opposite to the predetermined direction. Since the first operating member thereby operates in a direction opposite to the pressing direction of the second operating member, the first operating member operates so as to protrude out of the container body. In the on state or the off state, one of the first operating member and the second operating member protrudes out of the container and the other operating member is pulled into the container to enter the closed state. Alternatively, turn off Even in a state where the circuit breaker is looked up from an obliquely lower side of the distribution board where the circuit breakers are arranged in parallel, the direction to look up, and the first operation member and the second operation member to the outside of the body Since the protruding / retracting directions do not overlap, there is an accompanying effect that it is easy to confirm the on / off state of the circuit breaker.

Moreover, you may comprise as a characteristic that the shape of the part which protrudes out of the container of said 1st operation member and said 2nd operation member was made into mutually different shape.

As a result, when the circuit breaker is turned on or off, the shape of the portion of the operating member that indicates the on or off state that protrudes outside the body is different. This makes it easier to check on / off status.

Further, the protruding amounts of the first operating member and the second operating member protruding outside the body may be different from each other in the protruding amount.

As a result, when the circuit breaker is turned on or off, the operation members that indicate the on or off state have different projection amounts from the outside of the container body. This makes it easier to check the on / off status of.

Further, either one of the first operating member and the second operating member may be formed integrally with the rotating member.

As a result, the operation method is changed from the handle type to the push button type operation method at a lower cost compared to the case where the operation member of the circuit breaker is composed of the first operation member and the second operation member. In addition, it is possible to provide a circuit breaker that can easily check the on / off state.

According to the present invention, even when it is necessary to change the operation method of the circuit breaker according to the use application of the circuit breaker, the switching mechanism part of the circuit breaker is hardly changed, It is possible to provide a circuit breaker capable of changing the operation method of the circuit breaker at a cost.

Hereinafter, a circuit breaker according to a first embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 and FIG. 2 are schematic internal structural views of the circuit breaker according to the present invention as viewed from the parallel direction of the circuit breaker. FIG. 1 shows a case where the circuit breaker is turned on, and FIG. 2 shows a case where the circuit breaker is turned off. In addition, in order to make easy description of operation | movement of a mechanism part, it simplified and showed the figure.

In the figure, 1 is a container constituting the outline of the circuit breaker, 21 is a first operation member partially protruding outside the container 1 according to the operation state, and 22 is also according to the operation state. The second operating member partially protruding outside the body 1, 31 is a movable contact, 32 is a fixed contact, 4 is a circuit breaker mounting surface, 5 is a rotating member, 6 is a link, 7 Is a latch member, 8 is a cross bar, 9 is a bimetal, and 10 is an operating plate. In the drawing, the left side is the power supply side terminal side and the right side is the load side terminal side.

Next, each component will be described.
The first operating member 21 and the second operating member 22 are pivotally connected to the rotating member 5 by a first connecting portion 211 and a second connecting portion 221, respectively.

The pivotally connected positions are two regions formed by the mounting surface 4 of the circuit breaker and a normal surface with respect to the mounting surface 4 of the circuit breaker including the rotation center 501 of the rotating member 5. That is, in the drawing, when the two regions that are divided when the perpendicular line is drawn from the rotation center 501 to the mounting surface 4 in the drawing are the first region and the second region, the first operating member is the first member. The second operating member is connected to the rotating member in one region, and the second operating member is connected to the rotating member in the second region.

The rotating member 5 is formed in a shape substantially the same as the shape obtained by removing the handle portion of the handle operating member in a general safety breaker type circuit breaker, and can be easily replaced with the handle operating member. It has a shape.

The rotation member 5 is pivotally supported by a shaft member (not shown) provided in the container 1 at the rotation center 501 and presses the first operating member 21 toward the mounting surface 4 side. It rotates counterclockwise in the figure, and rotates clockwise in the figure by pressing the second operating member 22 toward the mounting surface 4 side. The rotating member 5 is always urged counterclockwise in the drawing by a spring (not shown).

The internal shapes of the first operating member 21 and the second operating member 22 are internal so as to avoid the rotation trajectory so as not to hinder the rotation of the rotating member 5 as indicated by the dotted line in the figure. Is formed with a recess.

One end of the link 6 is attached to the link attaching portion 512 of the rotating member 5, and the other end is attached to a link attaching portion 701 provided near the center of the latch member 7. And the latch member 7 are interlocked. Further, a guide portion 500 for restricting the movement of the other end portion of the link 6 on a predetermined locus is provided in the container body 1, and the other end portion of the link 6 is provided by the guide portion 500. Is provided so as to move on a predetermined locus in conjunction with the rotation of the rotating member 5.

Since the latch member 7 is connected to the rotating member 5 and the link 6, the latch member 7 operates in conjunction with the rotation of the rotating member 5. One end of the latch member 7 is provided with a crossbar pressing portion 702 that presses the crossbar 8 when the circuit breaker is turned on, and the other end is provided with a latch portion 703 that latches with the operation plate 10. It has been.

The crossbar 8 supports the movable contact 31 and operates in conjunction with the latch member 7. When the crossbar 8 is pressed by the crossbar pressing portion 702, the movable contact 31 is pushed down in the drawing. When it is brought into contact with the fixed contact 32 and the pressing of the crossbar pressing portion 702 is released, the movable contact 31 is fixed by being lifted upward by a spring (not shown) that constantly biases the crossbar 8 upward. The contact 32 is separated.

The bimetal 9 is provided with a part of the bimetal 9 as an electric circuit (direct heating type), and is bent and deformed in a predetermined direction when a current flows through the electric circuit to generate heat. Note that a part of the bimetal may not be an electric circuit, and a heater may be provided in the vicinity so that the heat of the heater is transmitted to the bimetal so that the bimetal is bent and deformed in a predetermined direction.

The operation plate 10 is supported by a part of the operation plate 10 and rotates around the rotation center 101 of the operation plate. The operating plate 10 is always urged counterclockwise by a spring (not shown), and urged in a direction in which the latch portion 703 provided on the latch member 7 and the latch portion 103 of the latch member 7 latch. Has been. Further, the working plate 10 is provided with a bimetal contact portion 102 that comes into contact when the bimetal 9 is bent and deformed, and the bimetal 9 comes into contact with the bimetal contact portion 102 to rotate the working plate. It rotates clockwise around the center 101.

Thus, since most of the open / close mechanisms inside the circuit breaker can be used as they are, it is possible to provide a circuit breaker capable of changing the operation method at low cost. As for the container 1, it is necessary to change the shape or size of the opening in accordance with the size of the protrusion of the push button as the operation member is changed from the handle type to the push button type.

Next, the operation of the operation unit of the circuit breaker will be described.

First, the case where the circuit breaker is operated from the OFF state to the ON state will be described. In the cut-off state, as shown in FIG. 2, a part of the first operation member 21 protrudes outside the container body 1, and the second operation member 22 is housed inside the container body 1. It has become.

When the first operating member 21 is pressed from the outside of the body 1 toward the inside of the body 1, the rotating member 5 and the first operating member 21 are connected by the first connecting portion 211. Therefore, the rotation member 5 starts to rotate counterclockwise about the rotation center 501. As the rotating member 5 rotates, the second connecting portion 221 starts to move upward in the figure, and the second operating member 22 connected to the connecting portion 221 in the second operating member-inserted state 2 is also used. The movement starts upward in the figure.

The link 6 also starts to move with the rotation of the rotating member 5, and the other end of the link 6 draws a predetermined locus along the guide portion 500 in the downward direction in the figure. Make a move to. Further, since the latch member 7 is connected to the rotation member 5 and the link 6 by the link attachment portion 701, the latch member 7 starts to move downward in the drawing as the rotation member 5 rotates.

When the latch member 7 is pressed by the link 6 and moves downward in the figure, first, the latch portion 703 comes into contact with the latch portion 103 of the actuating plate 10 with the latch member 7. When the latch portion 703 comes into contact with the latch portion 103 of the operation plate 10, it starts to rotate counterclockwise around the latch portion 703 and is pressed against the link 6, whereby the crossbar pressing portion 702 is pressed. While abutting against the crossbar, the crossbar pressing portion 702 pushes down the crossbar 8.

Now, when the first operating member 21 is pressed from the outside of the body 1 toward the inside of the body 1, the turning member 5 starts to rotate counterclockwise around the turning center 501. Since the rotating member 5 is urged clockwise by a spring that constantly urges the rotating member 5 in the clockwise direction and a spring that constantly urges the cross bar 8 in the upward direction, When the pressing is released in the middle of the transition to the on state, the rotating member 5 again rotates clockwise toward the original position, and the first operating member 21 also returns to the original position. It behaves so as to move in the direction of protruding to the outside of 1. The strength of the spring that constantly urges the rotating member 5 in the clockwise direction and the strength of the spring that constantly urges the cross bar 8 in the upward direction are always applied to the cross bar 8 in the upward direction. The biasing spring is provided to be larger.

Here, when a line connecting the rotation center 501 of the rotation member 5 and the link mounting portion 701 of the latch member 7 is a dead line, the first operation member 21 is directed from the outside of the body 1 to the inside of the body 1. When the link attachment portion 512 exceeds the dead line due to the rotation of the rotation member 5, the balance of the link is lost, that is, the rotation member moving center 501 and the link attachment portion shown in FIG. A substantially square shape connecting 512 and the link mounting portion 701 becomes a reverse generally square shape as shown in FIG. 1, and the spring is always biased in the upward direction by the spring. The rotating member 5 is now urged to rotate in the clockwise direction. As a result, the first operating member 21 moves to a position where it is housed in the body 1 and the second operating member 22 is moved. Moves to a position where a part protrudes outside the vessel 1. The movable contact 31 supported by the cross bar 8 comes into contact with the fixed contact 32 by being pressed by the cross bar 8, and the operation of the circuit breaker from the OFF state to the ON state is completed.

Next, the case where the circuit breaker is operated from the on state to the off state will be described. In the on state, as shown in FIG. 1, a part of the second operation member 22 protrudes outside the container body 1, and the first operation member 21 is housed inside the container body 1. It has become.

In this state, the second operating member 22 is pressed from the outside of the container body 1 toward the inside of the container body 1, and the force by the pressing urges the rotating member 5 in the counterclockwise direction. When the force is won, the rotating member 5 starts to rotate in the clockwise direction. The link mounting portion 512 gradually approaches the deadline, and when the deadline is exceeded, the link is unbalanced, and a spring that constantly biases the rotating member 5 in the clockwise direction, and the crossbar By the action of a spring that constantly biases 8 upward, the rotating member 5 is biased in the clockwise direction and rotates in the clockwise direction. As shown in FIG. 2, the first operation member operation member 21 moves to a position where a part of the first operation member operation member 21 protrudes outside the container body 1, and the second operation member 22 is disposed inside the container body 1. Move to the position where it is stored.

Further, since the cross bar 8 moves upward in the figure, the movable contact 31 supported by the cross bar 8 is separated from the fixed contact 32 and linked in conjunction with the rotation of the rotating member 5 in the clockwise direction. 6, the latch member 7 is also moved upward in the figure, and the circuit breaker is in the cut state shown in FIG.

When an abnormal current such as an overcurrent occurs in the circuit when the circuit breaker is in the on state, the bimetal 9 is bent and deformed to abut against the abutting portion 102 of the operating plate 10, and the bimetal 10 When the operation plate 10 is rotated in the clockwise direction in the figure, when the latch portion 103 with the latch member 7 and the latch portion 703 with the operation plate 10 are unlatched, the movement of the latch member 7 is restricted. When it is released, it can freely rotate in the clockwise direction in the figure, and is constantly pressed in the upper direction in the figure by the cross bar 8 that is urged in the upper direction in the figure, and the clock in the figure with the link attachment portion 701 as the center of rotation. The cross bar 8 moves in the upward direction in the figure while rotating in the surrounding direction, and the movable contact 31 supported by the section loss bar 8 moves away from the fixed contact 32. Further, since the rotating member 5 is always biased in the clockwise direction, the rotating member 5 starts to rotate in the clockwise direction, and the latch member 7 is pulled upward by the link, and the first operating member 21 is mounted on the body. The circuit breaker is in the cut-off state shown in FIG. 2 by moving the second operating member 22 in a direction in which the second operating member 22 is housed inside the container body 1.

Further, when the circuit breaker is in the on state, when an abnormal current such as an overcurrent occurs in the electric circuit, even when the first operation member 21 or the rotation member 5 does not move, as described above, When the latch part 103 with the latch member 7 and the latch part 703 with the operating plate 10 are unlatched, the latch member 7 is released from the restriction and can rotate in the clockwise direction in the figure. The latch member 7 is constantly pressed in the upper direction in the drawing by the cross bar 8 urged in the upper direction in the drawing and rotated in the clockwise direction in the drawing with the link attachment portion 701 as the center of rotation. The cross bar 8 can move upward in the figure, and the movable contact 31 supported by the cross bar 8 is separated from the fixed contact 32 and opened. That is, a so-called trip-free operation is performed.

By configuring the circuit breaker in this way, the operation member in the circuit breaker in which the handle type operation member is rotatably provided, the rotation member having the same rotation center as the operation member, Since the circuit breaker that is different from the push button type operation method can be provided by replacing the first operation member and the second operation member that are rotatably connected to the rotation member, the change of the opening / closing mechanism portion Therefore, it is possible to provide a circuit breaker that can change the operation method at a low cost.

Further, by pressing the first operating member, the rotating member is rotated in a predetermined direction, and the second operating member is thereby moved in a direction opposite to the pressing direction. The second operating member operates so as to protrude to the outside of the container body, and by pressing the second operating member, the rotating member is rotated in a direction opposite to the predetermined direction. Since the first operating member thereby moves in a direction opposite to the pressing direction of the second operating member so that the first operating member protrudes outside the body, the circuit breaker of the circuit breaker is In the on state or the off state, one of the first operating member and the second operating member protrudes out of the container and the other operating member is pulled into the container to enter the closed state. Alternatively, turn off Even in a state where the circuit breaker is looked up from an obliquely lower side of the distribution board where the circuit breakers are arranged in parallel, the direction to look up, and the first operation member and the second operation member to the outside of the body Since the projecting / withdrawing directions do not overlap, it is possible to provide a circuit breaker having an accompanying effect that it is easy to confirm the on / off state of the circuit breaker.

Next, a second embodiment will be described.

3 and 4 show examples of the circuit breaker according to the second embodiment, and show the circuit breaker as viewed toward the operation unit. In addition, in order to make easy description of operation | movement of a mechanism part, it simplified and showed the figure. In the figure, the upper side shows the power supply side terminal side and the lower side shows the load side terminal side. The mechanism inside the container 1 is the same as that in the first embodiment described above.

In FIG. 3, reference numeral 1021 denotes a first operation member, and 1022 denotes a second operation member, each of which has a square shape and a round shape. When the circuit breaker is in the on state, the second operation member 1022 is positioned so as to protrude outside the container body 1, and the first operation member 1021 is positioned so as to be housed inside the container body 1. . Further, when the circuit breaker is in a cut-off state, the first operation member 1021 is positioned so as to protrude outside the container body, and the second operation member 1022 is positioned so as to be housed inside the container body 1. To do.

In FIG. 4, reference numeral 1021 denotes a first operation member, and 1022 denotes a second operation member, which are formed in an elongated rectangular shape and a round shape, respectively. When the circuit breaker is in the on state, the second operation member 1022 is positioned so as to protrude outside the container body 1, and the first operation member 1021 is positioned so as to be housed inside the container body 1. . Further, when the circuit breaker is in a cut-off state, the first operation member 1021 is positioned so as to protrude outside the container body, and the second operation member 1022 is positioned so as to be housed inside the container body 1. To do.

As a result, the operation member in the circuit breaker provided with the handle type operation member can be rotated with respect to the rotation member having the same rotation center as the operation member and the rotation member. By replacing the first operating member and the second operating member connected to the circuit breaker, it is possible to provide a circuit breaker that is different from the push button type operating method, so that the change of the opening / closing mechanism portion is hardly performed and the cost is reduced In addition to being able to provide an excellent circuit breaker capable of changing the operation method, when the circuit breaker is in the on or off state, the operation member indicating the on or off state protrudes outside the body. Since the shapes of the portions are different from each other, it is easier to check the on / off state of the circuit breaker from the outside of the distribution board. In particular, the shape shown in FIG. 4 is configured so that the sign indicating the on / off state of the circuit breaker is substantially matched with the shape of the operating member. With this shape, it is possible to provide a circuit breaker that allows the user to intuitively understand whether the circuit breaker is in the on state or the off state.

Japanese Patent Laid-Open No. 2002-56763 discloses a new type 2 in which the width of the circuit breaker is reduced to approximately half the size as an alternative to the circuit breaker (safety breaker type) disclosed in Patent Documents 1 and 2. Although an example of a pole circuit breaker is shown, an example in which the present invention is applied to a two-pole circuit breaker as shown in this document is shown in FIG.

In the new type of circuit breaker for branching, the interval between the operation handles when a plurality of the branch circuit breakers are arranged in parallel is closer than that in the case of the conventional safety breaker type. For this reason, when the operation part structure of the present invention is applied, when the branch circuit breaker is turned on or off, a plurality of two-pole circuit breakers shown in JP-A-2002-56763 are arranged in parallel. It can be done more easily than

Next, a third embodiment will be described.

In the third embodiment, the length in the vertical direction of the first operating member and the second operating member described above, that is, the length in the direction connecting the mounting surface 4 and the operating member is different. is there. In the present embodiment, when the circuit breaker is in the on state, the amount of the first operation member and the second operation member projecting to the outside of the container 1 is substantially the same, but the circuit breaker is disconnected. In the state, the lengths of the first operating member and the second operating member are different from each other so that the protruding amount of the first operating member to the outside of the container 1 is remarkable.

As a result, the operation member in the circuit breaker provided with the handle type operation member can be rotated with respect to the rotation member having the same rotation center as the operation member and the rotation member. By replacing with the first operation member and the second operation member connected to the circuit breaker can be provided with a circuit breaker that is different from the push button type operation method, the change of the opening and closing mechanism portion is hardly performed, and at low cost In addition to being able to provide a circuit breaker capable of changing the operation method, in the ON or OFF state of the circuit breaker, the protrusion of the portion of the operating member that indicates the ON or OFF state that protrudes outside the body The circuit breaker is turned on / off from the outside of the distribution board because the amount is different from each other, that is, the amount of protrusion of the two operation members is different in the circuit breaker on / off state. Confirmation It is possible to provide a circuit breaker that can facilitate Ri.

Next, a fourth embodiment will be described.

6 and 7 show an example of the circuit breaker according to the fourth embodiment, and a schematic internal structural view of the circuit breaker viewed from the parallel arrangement direction is shown. In addition, in order to make easy description of operation | movement of a mechanism part, it simplified and showed the figure. FIG. 6 shows a case where the circuit breaker is turned on, and FIG. 7 shows a case where the circuit breaker is turned off.

In the figure, the left side is the power supply side terminal side, and the right side is the load side terminal side. The mechanism inside the container 1 is the same as that of the first embodiment described above except that the second operation member 3022 is integrally formed with the rotating member 5.

In the present embodiment, reference numeral 3021 in the figure is the first operating member, and the second operating member 3022 is integrally formed at a predetermined position of the rotating member 5.

When the circuit breaker is in the on state, the second operation member 3022 provided integrally with the rotating member 5 is positioned so as to protrude to the outside of the body 1, and the first operation member 3021 is the body 1. It is located so as to be stored inside. In addition, when the circuit breaker is in the cut-off state, the first operation member 3021 is positioned so as to protrude outside the body, and the second operation member 3022 provided integrally with the rotating member 5 is the body. It is located so as to be housed inside 1.

Accordingly, the operation member in the circuit breaker provided with the handle type operation member is rotatable, and the rotation member having the same rotation center as the operation member and the rotation member are rotatable. By replacing it with the first operation member connected to the circuit breaker, it is possible to provide a circuit breaker that is different from the handle type operation method to the push button type operation method. In addition to being able to provide a circuit breaker capable of changing the operation method at the time of providing the operation member of the circuit breaker, from the two operation members of the first operation member and the second operation member Compared to the case where it is configured, it is easier to check the on / off state of the circuit breaker by forming one operating member integrally with the rotating member, and at a lower cost. With a circuit breaker It can be provided.

Further, as a configuration for facilitating the confirmation of the on / off state of the circuit breaker, the first operating member and the second operating member may be configured in different colors. Thereby, since the color when the operation member protrudes outside the container is different between the on state and the off state, it is possible to make it easier to check the on state or the off state.

More specifically, for example, in FIGS. 1 and 2, it is preferable to configure the protruding surfaces on the load side terminal side of the first operating member and the second operating member to be different from each other. This is because when the distribution board with circuit breakers arranged in parallel is looked up, the protruding surfaces on the load side terminal side of the first operating member and the second operating member are substantially aligned with the looking up direction. It is because it is easy to do. In addition, in the first operation member and the second operation member, by coloring the portions hidden in the container 1 in different colors, either one of the colors can be obtained from the outside of the container 1. It may be configured such that only the device can be visually recognized, and the on state or the off state can be distinguished by the difference in color.

Further, in the first operating member and the second operating member, a C surface is provided on the load side terminal side of the first operating member and the second operating member, and a direction in which the distribution board is looked up. And the C plane may be provided so as to be substantially orthogonal. Thereby, when it looks up from the outside of a distribution board, the area which can visually recognize an operation member increases, and it can make it easier to confirm the ON state or the OFF state of a circuit breaker. In addition, the C surface may be colored or provided with a sign such as “ON” indicating an ON state or “OFF” indicating a OFF state.

Moreover, although embodiment described above has shown the structure which makes the rotation member 5 and the latch member 7 interlock | cooperate using the link 6, the part facing the latch member 7 of the said rotation member 5, for example is shown. , In order to balance the force in the direction toward the latch member 7, when the circuit breaker is operated from the cut-off state to the on-state, the rotation member rotates to act directly on the latch member, The latch member may be pushed down, and the link 6 may be omitted.

When the circuit breaker is operated from the on state to the off state, the crossbar 8 is always urged upward in the figure, so that it is latched by the fleshing portion provided on the rotating member. When the pressing action on the member is released, the cross bar moves upward, and the latch member 7 is pushed upward to move the latch member to a predetermined position in the cut state.

As described above, since the operation part structure in the circuit breaker of the present invention is easy to check the on / off state of the circuit breaker, it is not only arranged on a residential distribution board. By placing the switchboard on an industrial distribution board, it may be possible to more easily check the on / off state of the circuit breaker at the work site.

It is the schematic structure figure which showed the operation part structure of the circuit breaker of 1st embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 1st embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 2nd embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 2nd embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 2nd embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 4th embodiment of this invention. It is the schematic structure figure which showed the operation part structure of the circuit breaker of 4th embodiment of this invention. It is a figure explaining background art. It is a figure explaining background art. It is a figure explaining background art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 21 1st operation member 22 2nd operation member 31 Movable contact 32 Fixed contact 4 Mounting surface 5 Rotating member 6 Link 7 Latch member 8 Crossbar 9 Bimetal 10 Acting plate 500 Guide part 1021 1st operation member 1022 2nd operation member 2021 1st operation member 2022 2nd operation member 3021 1st operation member 3022 2nd operation member

Claims (4)

An operation member partially protruding outside the body constituting the circuit breaker, and an open / close operation that operates in conjunction with the operation member to forcibly connect and separate the fixed contact and the movable contact by operating the operation member. In a circuit breaker having a mechanism and a mounting surface for mounting the circuit breaker on a predetermined surface,
A rotating member disposed in the container so as to be rotatable between an on state and an off state of the circuit breaker by operating the operation member;
A latch member that is connected to the rotating member by a link, and operates in conjunction with the rotating operation of the rotating member via the link;
A crossbar interlocking with the latch member;
A movable contact supported by the crossbar;
A fixed contact disposed opposite to the movable contact,
The operation member includes a first operation member and a second operation member that are rotatably connected to the rotation member.
When the two regions formed by the mounting surface of the circuit breaker and the normal surface with respect to the mounting surface of the circuit breaker including the rotation center of the rotating member are the first region and the second region In addition,
The first operating member is coupled to the rotating member in the first region;
The circuit breaker according to claim 2, wherein the second operating member is connected to the rotating member in the second region. 2. The circuit breaker according to claim 1, wherein the first operating member and the second operating member protrude from the container in different shapes. 3. 3. The circuit breaker according to claim 1, wherein the protrusion amounts of the first operation member and the second operation member protruding outside the container are different from each other. 4. The circuit breaker according to claim 1, wherein one of the first operating member and the second operating member is integrally formed with the rotating member.

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